Cant tell by the pics what its got going on. For me I have a if in doubt, increase water changes way of going about it. Start with clean water to see if it clears up.
On the head between the eyes there's a white patch, Goldie hanger had any white patches in the last 2 years I've had her. I was curious if she's just recovering from trauma since it doesn't look like fungus to me.
I would do your water change and continue to monitor it. If it is just white, but not fuzzy, could have just been a scrape or something. Keep up with clean water and it should go away naturally on its own.